blob: 58b1eb71136007727e8535eaeb19e2ea4a00fb9a [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#include <linux/types.h>
* Arguments for how openat2(2) should open the target path. If only @flags and
* @mode are non-zero, then openat2(2) operates very similarly to openat(2).
* However, unlike openat(2), unknown or invalid bits in @flags result in
* -EINVAL rather than being silently ignored. @mode must be zero unless one of
* {O_CREAT, O_TMPFILE} are set.
* @flags: O_* flags.
* @mode: O_CREAT/O_TMPFILE file mode.
* @resolve: RESOLVE_* flags.
struct open_how {
__u64 flags;
__u64 mode;
__u64 resolve;
/* how->resolve flags for openat2(2). */
#define RESOLVE_NO_XDEV 0x01 /* Block mount-point crossings
(includes bind-mounts). */
#define RESOLVE_NO_MAGICLINKS 0x02 /* Block traversal through procfs-style
"magic-links". */
#define RESOLVE_NO_SYMLINKS 0x04 /* Block traversal through all symlinks
#define RESOLVE_BENEATH 0x08 /* Block "lexical" trickery like
"..", symlinks, and absolute
paths which escape the dirfd. */
#define RESOLVE_IN_ROOT 0x10 /* Make all jumps to "/" and ".."
be scoped inside the dirfd
(similar to chroot(2)). */
#endif /* _UAPI_LINUX_OPENAT2_H */